Sorry about that, it looks as through this was updated incorrectly; as the Slingbox 500 does not support 1080p with 60 frames per second. I have put in a request to have the article itself fixed so we don't have any more confusion in the future.

Hi, I have just noticed that the Stream type of connection is SNATT while TCP is the optimal connection when the port 5201 is open within the firewall of your router for the IP address of your slingbox. I have tested it on my 350, Im still getting fps 90% on a STD resolution but the Render frames are much closer to the Stream frames ...

Also try the embedded slingplayer link Slingbox Player ( note that the link will work only when the port 5201 is open )

and press Shift + Q to get info about your connection .... you might get more frames